高速公路异常事件自动监测系统设计_毕业设计.doc

高速公路异常事件自动监测系统设计
摘要
本文通过分析高速公路路网中的交通流运行特征,利用交通流基本理论知
识对路段上环形线圈采集到的交通流流量和占有率数据进行比较分析和统计
推导,并结合交通拥挤条件下车流的运行特征提出了适用于我国交通流的识别
交通拥挤现象发生与消散过程的增量判别准则;通过对流量、占有率这两个重
要的指标进行理论推导和统计分析构造出恰当的拥挤检测指标,用这些指标对
交通流状态进行划分实现对拥挤事件的自动检测与判别,并采用仿真与实际数
据加以验证。针对以事件检测为目的的检测器布设方案,从经验和定量分析的
角度提出了一般布设原则;具体分析了检测器布设密度对行程时间计算的影
响,从计算行程时间的角度提出了合理布设检测器的原则,并采用CORSIM
微观仿真工具进行模拟验证。
关键词:交通事件,交通拥挤,检测算法,检测器布设,微观仿真
ABSTRACT
Through analysis of the work traffic characteristics, use traffic flow basic theory to know For road section toroidal general to collect traffic flow and share data analysis and statistics Derivation and traffic conditions with traffic is put forward the operation characteristics identification of traffic flow in our country Traffic congestion phenomenon and dissipation process increment discriminant criteria; Through to flow, share the two heavy The indexes to theoretical derivation and statistical analysis tectonic of the right crowded with these indicators monitoring indicators, for Traffic flow state to crowded events divided realize automatic detection and discrimination, and by using the simulation and actual number According to verified. For the purpose of incident detection layont plan, the detector from experience and quantitative analysis The general principle of paper laid; Concrete analysis of the detector travel time calculation layont density shadows Ring, travel time from the Angle of calculated put forward the principle of reasonable, and laid detector by CORSIM Microscopic simulation tools for simulation.
Keywords: traffic events, traffic congestion, detection algorithm, detector, the micro simulation laid
目录
引言 1
第一章绪论 2
2
2
4
5
第二章交通事件 6
6
7
8
8
9
10
第三章交通事件自动检测算法概述 11
事件自动检测算法的分类 11
11
11
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